Material Properties

Material Properties for Wound Composites in Standard Laminate Constructions

Beam Structures		Built for Maximum Stiffness.

Material Properties			E-Glass		30MM Carbon	50MM Carbon	Applications
Flexural Modulus Longitudinal, 106 psi	5.5		14.0		21.0		Process Rollers
Flexural Modulus Circumferential, 106 psi	1.1		5.0		7.5		Booms
Tensile Strength Longitudinal, psi	115,000		130,000		130,000		Masts
Tensile Strength Circumferential, psi	44,000		40,000		40,000		Beams
Compressive Strength Longitudinal, psi	57,000		130,000		130,000		Columns
Compressive Strength Circumferential, psi	18,000		50,000		50,000		Cores
Shear Modulus, psi 106	1.1		2.0		2.6
Shear Strength, psi			8,000		8,000		8,000
CTE Circumferential, in/in/oF x 10-6	10.2		7.1		6.4
CTE Longitudinal, in/in/oF x 10-6	4.8		.17		-43.6	
Poisson’s ratio, NUxy			.27		.43		.69		
Density, Lb/in3			0.072		0.058		0.058

Torque Applications		Built for Maximum Torque Transmission.

Material Properties			E-Glass		30MM Carbon	Applications
Flexural Modulus Longitudinal, 106 psi	2.7		3.0		Automotive Driveshafts
Flexural Modulus Circumferential, 106 psi	2.7		3.0		Marine Driveshafts
Tensile Strength Longitudinal, psi	22,000		20,000		Cooling Tower Driveshafts
Tensile Strength Circumferential, psi	22,000		20,000		Couplings
Compressive Strength Longitudinal, psi	26,000		23,000		Underwater Housings
Compressive Strength Circumferential, psi	26,000		23,000
Shear Modulus, psi 106		1.8		5.5
Shear Strength, psi			8,000		8,000
CTE Circumferential, in/in/oF x 10-6	6.4		1.1
CTE Longitudinal, in/in/oF x 10-6	6.4		1.1	
Poisson’s ratio, NUxy			.47		.7
Density, Lb/in3			0.072		0.058

Black Amalgon		Built for Maximum Internal Pressure under a Compressive Load.

Material Properties			E-Glass		30MM Carbon	Applications
Flexural Modulus Longitudinal, 106 psi	1.3		2.5		Pneumatic & Hydraulic 
Flexural Modulus Circumferential, 106 psi	3.6		8.7		Cylinders
Tensile Strength Longitudinal, psi	16,000		12,000		Valve Actuators
Tensile Strength Circumferential, psi	40,000		58,000		Pump Housings
Compressive Strength Longitudinal, psi	27,000		37,000		Marine Cylinders
Compressive Strength	 Circumferential, psi	37,000		35,000
Shear Modulus, psi 106		1.8		5.0
Shear Strength, psi			8,000		8,000
CTE Circumferential, in/in/oF x 10-6	4.6		-.81
CTE Longitudinal, in/in/oF x 10-6	8.8		4.4	
Poisson’s ratio, NUxy			.35		.43
Density, Lb/in3			0.072		0.058

Overwrap Reinforcements	Additional Strength from Overwrapping.

Material Properties			E-Glass		30MM Carbon	Applications
Flexural Modulus Longitudinal, 106 psi	1.2		1.3		High Speed Rotors
Flexural Modulus Circumferential, 106 psi	8.0		19.0		Reinforced Tanks
Tensile Strength Longitudinal, psi	5,000		6,000		Anti-Corrosion Covers
Tensile Strength Circumferential, psi	210,000		210,000		Cathodes
Compressive Strength Longitudinal, psi	17,000		35,000		Impact Protection
Compressive Strength Circumferential, psi	138,000		185,000
Shear Modulus, psi 106		0.8		1.0
Shear Strength, psi			8,000		8,000
CTE Circumferential, in/in/oF x 10-6	3.7		-.09
CTE Longitudinal, in/in/oF x 10-6	13.3		11.9	
Poisson’s ratio, NUxy			.08		.02
Density, Lb/in3			0.072		0.058

Electrical Applications		Choose from fiber orientations listed above for Mechanical Properties. 
								
Electrical Properties			E-glass		Applications
Dissipation Factor			0.015 max		Lightning Arrestors
Power Factor 1MHz (ASTM D 150-64T) 60cps	0.30%		Insulated Housings
			1mc	0.15%		Insulated Bushings
Dielectric Strength (ASTM D 149-61)			Fuses
    Short Term Perpendicular Volts/mil  @ 60 Hz	500.00
    Step by Step Perpendicular Volts/mil  @ 60 Hz	400.00
Dielectric Constant (ASTM D 150-64T) 60cps		4.70   
                                     1mc		4.50
Arc Resistance (ASTM 495-61)		150.00 seconds  
Insulation Resistance (ASTM 257-61)
        96 HRS @ 35oC 2 x 107 meg ohms	90.00% RH
Water Absorption 24 hrs		0.01% max
Thermal Conductivity BTU/in/hr/ft^2/oF	2.50